2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Vim qhov pores ntawm cov ntaub so ntswg tau ntim nrog cov zaub mov lossis cov organic teeb meem hloov nrog cov zaub mov, cov pob txha tau tsim los ntawm cov ntaub so ntswg lossis cov kab mob, tab sis cov pob txha pob txha. yuav txawv thiab yuav hnyav dua.
Yuav ua li cas thaum ib yam dab tsi yog fossilized?
Thaum ib yam dab tsi fossilizes, nws dhau los ua pob txha, txhais tau tias nws tawm hauv lub ntiaj teb uas nyob deb ntawm cov kab mob. Fossils yog cov seem tshuav nyob rau hauv pob zeb ntawm ib tug tsiaj nyob: cov seem tau petrified ntau xyoo thiab lawv tawm ib tug xav txog seb tus tsiaj zoo li cas.
Puas yog fossilization hloov tshuaj?
Thaum lub sijhawm fossilisation, pob txha cov ntaub so ntswg hloov kho los ntawm ntau yam tshuaj hloov pauv. Cov pob txha pob txha tuaj yeem decomposed ob qho tib si los ntawm kev hloov ionic thiab los ntawm cov txheej txheem dissolution thiab recrystallisation. … Dhau li ntawm qhov no, lawv tuaj yeem hloov kho cov pob txha cuam tshuam los ntawm kev tso cov organic microbial mebolites hauv cov ntaub so ntswg.
Zoo li cas cov pob txha tsim chemistry?
Ntau yam tsiaj ua fossilized los ntawm faus rau hauv sediment. Rau lawv yuav tsum tau fossilized, lawv yuav tsum tau muab faus thiab tso ib tug imprint ua ntej lawv decompose. Tsiaj txhu tsis muaj skeletons tsis tshua muaj fossilized, vim lawv decompose sai heev. Tsiaj txhu nrog cov pob txha tawv yog yooj yim dua rau pob txha.
fossils ua haujlwm li cas?
Fossils yog tsim nyob rau hauv ntau txoj kev,tiam sis feem ntau yog tsim thaum tsob ntoo lossis tsiaj tuag hauv qhov chaw muaj dej thiab raug faus rau hauv av nkos thiab cov av. Cov ntaub so ntswg sai sai decompose tawm hauv cov pob txha tawv los yog plhaub tom qab. Sij hawm dhau mus sediment ua rau saum toj thiab hardens rau hauv pob zeb.
Pom zoo:
Puas yog denaturation yog tshuaj los yog lub cev hloov?
Denaturation ntawm ib txwm muaj protein ntau yuav piav raws li hloov pauv ntawm nws lub cev, tshuaj, lossis khoom lom neeg. Kev mob me me tuaj yeem cuam tshuam cov txheej txheem tertiary lossis quaternary, qhov hnyav hnyav tuaj yeem cuam tshuam cov saw hlau.
Puas yog lub cev tiv thaiv kab mob hauv lub cev puas tsim cov tshuaj tiv thaiv?
Lub cev tiv thaiv kab mob tau txais, nrog kev pab los ntawm lub cev hauv lub cev, tsim cov hlwb (tshuaj tiv thaiv kab mob) los tiv thaiv koj lub cev los ntawm ib tus neeg invader tshwj xeeb. Cov tshuaj tiv thaiv no yog tsim los ntawm cov hlwb hu ua B lymphocytes tom qab lub cev tau raug rau cov neeg ua phem.
Puas yog hu ua tshuaj pleev thaiv hnub lossis tshuaj pleev thaiv hnub?
Sunscreen, tseem hu ua suncream, sunblock los yog suntan lotion, yog ib tug photoprotective tshuaj pleev ib ce rau daim tawv nqaij uas absorbs los yog qhia txog ib co ntawm lub hnub lub ultraviolet (UV) hluav taws xob thiab yog li ntawd. pab tiv thaiv tshav kub kub thiab tseem ceeb tshaj tiv thaiv kab mob qog noj ntshav.
Puas oxidation yog tshuaj lossis hloov lub cev?
Cov tshuaj hloov pauv tshwm sim ntawm qib molecular, txhais tau hais tias cov atoms hauv cov molecules lossis cov tebchaw tau hloov kho los tsim cov khoom. Oxidation yog ib qho piv txwv ntawm a tshuaj hloov pauv. Puas yog oxidation lub cev lossis tshuaj lom neeg?
Cov tshuaj pleev puas muaj kev nyab xeeb thaum cev xeeb tub?
Cov tshuaj tiv thaiv thawj zaug no tshuaj pleev tsis muaj kev phom sij thaum cev xeeb tub thaumkoj coj lawv raws li pob lus qhia. Yog tias koj xav paub txog kev nyab xeeb ntawm lwm cov tshuaj pleev, hu rau koj tus kws kho mob. Nrog koj tus kws kho mob tham ua ntej noj cov tshuaj thaum koj cev xeeb tub.
